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==Parathyroid Glands==
 
==Parathyroid Glands==
The parathyroid glands are multiple (generally four) small glands, approximately 1-2mm in length are located about the cranial trachea. There are two internal glands embedded within the cranial [[Thyroid Gland - Anatomy & Physiology|thyroid glands]], and two external glands along the trachea, close to the caudal deep cervical lymph nodes.
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The parathyroid glands are multiple (generally four) small glands, approximately 1-2mm in length are located about the cranial trachea. There are two internal glands embedded within the cranial [[Thyroid Gland - Anatomy & Physiology|thyroid glands]], and two external glands along the trachea, close to the caudal deep cervical lymph nodes. The parathyroid glands produce '''parathyroid hormone (PTH)''', which regulates serum [[Calcium|calcium]] and [[Phosphorus|phosphorus]] concentrations.
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===Vasculature===
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The parathyroid glands are surrounded by a '''capillary network''' which arises from branches of the '''common carotid artery'''. Venous drainage is via the '''jugular vein'''.
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===Lymphatics===
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The parathyroid glands drain to the '''deep cervical lymph nodes'''.
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===Innervation===
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*Sympathetic: From the cranial cervical ganglion
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*Parasympathetic: Run with branches of the caudal laryngeal nerve
    
==Adrenal Glands==
 
==Adrenal Glands==
 
==Pineal Glands==
 
==Pineal Glands==
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